aboutsummaryrefslogtreecommitdiffstats
path: root/Documentation/devicetree/bindings
diff options
context:
space:
mode:
authorDavid S. Miller <davem@davemloft.net>2019-03-02 13:55:36 -0800
committerDavid S. Miller <davem@davemloft.net>2019-03-02 13:55:36 -0800
commit2369afb6696c5a53772bfbc8b57b75dd40e46bfc (patch)
tree182b849e356af91e15964e4bb3fde47579b2f117 /Documentation/devicetree/bindings
parentMerge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net (diff)
parentBluetooth: mediatek: add support for MediaTek MT7663U and MT7668U UART devices (diff)
downloadlinux-dev-2369afb6696c5a53772bfbc8b57b75dd40e46bfc.tar.xz
linux-dev-2369afb6696c5a53772bfbc8b57b75dd40e46bfc.zip
Merge branch 'for-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth-next
Johan Hedberg says: ==================== pull request: bluetooth-next 2019-03-02 Here's one more bluetooth-next pull request for the 5.1 kernel: - Added support for MediaTek MT7663U and MT7668U UART devices - Cleanups & fixes to the hci_qca driver - Fixed wakeup pin behavior for QCA6174A controller Please let me know if there are any issues pulling. Thanks. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'Documentation/devicetree/bindings')
-rw-r--r--Documentation/devicetree/bindings/net/btusb.txt3
-rw-r--r--Documentation/devicetree/bindings/net/mediatek-bluetooth.txt64
2 files changed, 67 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/net/btusb.txt b/Documentation/devicetree/bindings/net/btusb.txt
index 37d67926dd6d..b1ad6ee68e90 100644
--- a/Documentation/devicetree/bindings/net/btusb.txt
+++ b/Documentation/devicetree/bindings/net/btusb.txt
@@ -9,6 +9,9 @@ Required properties:
(more may be added later) are:
"usb1286,204e" (Marvell 8997)
+ "usbcf3,e300" (Qualcomm QCA6174A)
+ "usb4ca,301a" (Qualcomm QCA6174A (Lite-On))
+
Also, vendors that use btusb may have device additional properties, e.g:
Documentation/devicetree/bindings/net/marvell-bt-8xxx.txt
diff --git a/Documentation/devicetree/bindings/net/mediatek-bluetooth.txt b/Documentation/devicetree/bindings/net/mediatek-bluetooth.txt
index 14ceb2a5b4e8..41a7dcc80f5b 100644
--- a/Documentation/devicetree/bindings/net/mediatek-bluetooth.txt
+++ b/Documentation/devicetree/bindings/net/mediatek-bluetooth.txt
@@ -33,3 +33,67 @@ Example:
clock-names = "ref";
};
};
+
+MediaTek UART based Bluetooth Devices
+==================================
+
+This device is a serial attached device to UART device and thus it must be a
+child node of the serial node with UART.
+
+Please refer to the following documents for generic properties:
+
+ Documentation/devicetree/bindings/serial/slave-device.txt
+
+Required properties:
+
+- compatible: Must be
+ "mediatek,mt7663u-bluetooth": for MT7663U device
+ "mediatek,mt7668u-bluetooth": for MT7668U device
+- vcc-supply: Main voltage regulator
+- pinctrl-names: Should be "default", "runtime"
+- pinctrl-0: Should contain UART RXD low when the device is powered up to
+ enter proper bootstrap mode.
+- pinctrl-1: Should contain UART mode pin ctrl
+
+Optional properties:
+
+- reset-gpios: GPIO used to reset the device whose initial state keeps low,
+ if the GPIO is missing, then board-level design should be
+ guaranteed.
+- current-speed: Current baud rate of the device whose defaults to 921600
+
+Example:
+
+ uart1_pins_boot: uart1-default {
+ pins-dat {
+ pinmux = <MT7623_PIN_81_URXD1_FUNC_GPIO81>;
+ output-low;
+ };
+ };
+
+ uart1_pins_runtime: uart1-runtime {
+ pins-dat {
+ pinmux = <MT7623_PIN_81_URXD1_FUNC_URXD1>,
+ <MT7623_PIN_82_UTXD1_FUNC_UTXD1>;
+ };
+ };
+
+ uart1: serial@11003000 {
+ compatible = "mediatek,mt7623-uart",
+ "mediatek,mt6577-uart";
+ reg = <0 0x11003000 0 0x400>;
+ interrupts = <GIC_SPI 52 IRQ_TYPE_LEVEL_LOW>;
+ clocks = <&pericfg CLK_PERI_UART1_SEL>,
+ <&pericfg CLK_PERI_UART1>;
+ clock-names = "baud", "bus";
+
+ bluetooth {
+ compatible = "mediatek,mt7663u-bluetooth";
+ vcc-supply = <&reg_5v>;
+ reset-gpios = <&pio 24 GPIO_ACTIVE_LOW>;
+ pinctrl-names = "default", "runtime";
+ pinctrl-0 = <&uart1_pins_boot>;
+ pinctrl-1 = <&uart1_pins_runtime>;
+ current-speed = <921600>;
+ };
+ };